Former Owner
- John Hope, 1st Marquess of Linlithgow1
- John Ingle Dredge1
- John Jalkyn1
- John Paget1
- John Payne Collier1
- John Ruskin2
- John Shelton Lawrence1
- John Stirton1
- John Towneley2
- John Trotter Brockett1
- Jonathan Peckover1
- Jorge de Ataíde1
- Joseph Barrois2
- Joseph Ernst Koch-Sternfeld1
- Joseph Franz Gross1
- Joseph François René de Kergariou1
- Joseph Görres1
- Joseph Halle Schaffner1
- Joseph L. Lilly1
- Joseph Neeld1